JPH07260324A - Refrigerator freezer - Google Patents
Refrigerator freezerInfo
- Publication number
- JPH07260324A JPH07260324A JP5028194A JP5028194A JPH07260324A JP H07260324 A JPH07260324 A JP H07260324A JP 5028194 A JP5028194 A JP 5028194A JP 5028194 A JP5028194 A JP 5028194A JP H07260324 A JPH07260324 A JP H07260324A
- Authority
- JP
- Japan
- Prior art keywords
- frost
- amount
- defrosting
- refrigerator
- compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Defrosting Systems (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、蒸発器を加熱除霜する
ようにした冷凍冷蔵庫に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator / freezer in which an evaporator is heated and defrosted.
【０００２】[0002]
【従来の技術】この種の冷凍冷蔵庫の一例として、実開
昭６０ー６５５８２号公報や、特開平２ー３３５９２号
公報に開示されたものがある。2. Description of the Related Art One example of this type of refrigerator-freezer is disclosed in Japanese Utility Model Laid-Open No. 60-65582 and Japanese Patent Laid-Open No. 2-33592.
【０００３】以下図面を参照しながら、動作の一例につ
いて図４、図５、図６を用いて説明する。これは除霜ヒ
ータを有する事例である。An example of the operation will be described below with reference to the drawings with reference to FIGS. 4, 5 and 6. This is the case with a defrost heater.
【０００４】図４において、１は冷蔵庫箱体で冷凍室
２、冷蔵室３、野菜室４で構成されている。冷凍室２の
庫内奥面に設けた蒸発器５は、蒸発器５の冷媒の入り口
であるキャピラリ６と出口で液冷媒をためるアキューム
レータ７で構成されている。８は蒸発器５の下部に取り
付けられた除霜ヒータで蒸発器５に着霜した霜を除霜す
る働きをする。９は蒸発器５の上面に取り付けられた除
霜温度度センサで−３℃で、”Ｈ ”、＋１０℃で”Ｌ
”を出力し、除霜終了を検知する。１０は庫内温度検
出手段で−１７℃で”Ｈ ”、−２３℃で”Ｌ ”を出
力する。１１は冷凍室２の蒸発器５に冷媒を循環させ冷
却するための圧縮機である。In FIG. 4, a refrigerator box 1 is composed of a freezer compartment 2, a refrigerating compartment 3 and a vegetable compartment 4. The evaporator 5 provided on the inner surface of the freezer compartment 2 is composed of a capillary 6 which is an inlet of the refrigerant of the evaporator 5 and an accumulator 7 which collects the liquid refrigerant at the outlet. Reference numeral 8 denotes a defrost heater attached to the lower portion of the evaporator 5 and serves to defrost the frost formed on the evaporator 5. 9 is a defrosting temperature sensor attached to the upper surface of the evaporator 5 at -3 ° C, "H", at + 10 ° C "L"
Is output to detect the end of defrosting. 10 is an internal temperature detecting means that outputs "H" at -17 ° C and "L" at -23 ° C. 11 is a refrigerant to the evaporator 5 of the freezer compartment 2. It is a compressor for circulating and cooling.
【０００５】図５において、１２は温度制御手段で庫内
温度検出手段１０の動作を入力する信号ａとＡＮＤゲー
ト１３に出力する信号ｂが接続されている。１４は除霜
制御手段で圧縮機１１の運転時間を積算し、所定時間に
達すると信号ｅを出力する運転積算装置１５と、除霜を
開始するためのＡＮＤゲート１３に出力する信号ｃと、
除霜ヒータ８を動作させる出力の信号ｇと除霜温度セン
サ９の動作を入力する信号ｈとが接続されている。ま
た、ＡＮＤゲート１３の出力である信号ｄは圧縮機１１
と運転積算手段１５に接続されている。In FIG. 5, reference numeral 12 is a temperature control means to which a signal a for inputting the operation of the inside temperature detecting means 10 and a signal b for outputting to the AND gate 13 are connected. Reference numeral 14 denotes a defrost control means that integrates the operating time of the compressor 11 and outputs a signal e when a predetermined time is reached, and a signal c output to the AND gate 13 for starting defrosting.
An output signal g for operating the defrost heater 8 and a signal h for inputting the operation of the defrost temperature sensor 9 are connected. Further, the signal d output from the AND gate 13 is the compressor 11
Is connected to the operation integrating means 15.
【０００６】以下図６の制御装置のタイミングチャート
を用いて動作の説明を行う。信号ａは庫内温度検出手段
１０から温度制御手段１２への入力信号の状態、信号ｂ
は温度制御手段１２からＡＮＤゲート１３への出力信号
の状態を表している。また、信号ｃは除霜制御手段１４
からＡＮＤゲート１３への出力信号の状態、信号ｄはＡ
ＮＤゲート１３から圧縮機１１と運転積算手段１５への
出力信号の状態、信号ｅは運転積算手段１５から除霜制
御手段１２への出力信号の状態、信号ｇは除霜制御手段
１４から除霜ヒータ８への出力信号の状態、信号ｈは除
霜温度センサ９から除霜制御手段８への入力信号の状態
を表している。The operation will be described below with reference to the timing chart of the control device shown in FIG. The signal a is the state of the input signal from the internal temperature detection means 10 to the temperature control means 12, and the signal b.
Represents the state of the output signal from the temperature control means 12 to the AND gate 13. Further, the signal c is the defrost control means 14
State of the output signal from the AND gate 13 to the AND gate 13, the signal d is A
The state of the output signal from the ND gate 13 to the compressor 11 and the operation integration means 15, the signal e is the state of the output signal from the operation integration means 15 to the defrost control means 12, and the signal g is the defrost control means 14 from the defrost control means 14. The state of the output signal to the heater 8 and the signal h represent the state of the input signal from the defrost temperature sensor 9 to the defrost control means 8.
【０００７】期間Ａ、Ｂにおいては、通常の冷却状態で
庫内温度検出手段１０の信号ａが−１７℃以上であるた
め、温度制御手段１２からの信号ｂはＯＮとなり、通常
冷却中であるため除霜制御手段１４からの信号ｃもＯ
Ｎ、ＡＮＤゲート１３の出力の信号ｄもＯＮとなり、圧
縮機１１、運転積算手段１５が動作している。In the periods A and B, since the signal a of the internal temperature detecting means 10 is -17 ° C. or higher in the normal cooling state, the signal b from the temperature controlling means 12 is ON and the normal cooling is being performed. Therefore, the signal c from the defrost control means 14 is also O.
The signal d output from the N and AND gates 13 is also turned on, and the compressor 11 and the operation integrating means 15 are operating.
【０００８】期間Ｂにおいては、庫内温度検出手段の信
号ａが−２３℃以下であるため、温度制御手段１２から
の信号ｂはＯＦＦとなり、冷却停止中であるため除霜制
御手段１４からの信号ｃもＯＦＦ、ＡＮＤゲート１３の
出力の信号ｄもＯＦＦとなり、圧縮機１１、運転積算手
段１５が停止している。つまり、通常冷却運転時につい
ては、期間Ａ、Ｂを繰り返すこととなる。In the period B, since the signal a of the in-compartment temperature detecting means is -23 ° C. or lower, the signal b from the temperature controlling means 12 is OFF, and since the cooling is stopped, the defrost controlling means 14 outputs. The signal c is turned off, the signal d output from the AND gate 13 is also turned off, and the compressor 11 and the operation integrating means 15 are stopped. That is, during the normal cooling operation, the periods A and B are repeated.
【０００９】期間Ｃにおいては、庫内温度検出手段１０
からの信号ａが−１７℃以上であるため、温度制御手段
１２からＡＮＤゲート１３への出力信号ｂはＯＮである
が、運転積算手段１５が、圧縮機１１の運転時間が所定
時間に達しているため除霜制御手段１４への信号ｅを積
算ＵＰの信号に反転しているため、除霜制御手段１４は
通常冷却運転状態から除霜運転に移るためにＡＮＤゲー
ト１３への信号ｃをＯＦＦ、ＡＮＤゲート１３への出力
信号ｄもＯＦＦとし、圧縮機１１を停止させ、除霜ヒー
タ８をＯＮにし、除霜ヒータへ通電を行い、除霜運転を
開始する。In the period C, the inside temperature detecting means 10
The output signal b from the temperature control means 12 to the AND gate 13 is ON because the signal a from the above is -17 ° C. or higher, but the operation integrating means 15 causes the operation time of the compressor 11 to reach a predetermined time. Since the signal e to the defrost control means 14 is inverted to the signal of the integrated UP, the defrost control means 14 turns off the signal c to the AND gate 13 in order to shift from the normal cooling operation state to the defrost operation. The output signal d to the AND gate 13 is also turned off, the compressor 11 is stopped, the defrost heater 8 is turned on, the defrost heater is energized, and the defrost operation is started.
【００１０】期間Ｄは除霜運転中であり、圧縮機１１を
停止させ、除霜ヒータ８による加熱と、圧縮機１１の停
止時に蒸発器５内部に残留している冷媒による熱伝導効
果により通常冷却運転で蒸発器５に着霜した霜を除霜し
ている。During the period D, the defrosting operation is being performed, the compressor 11 is stopped, heating by the defrost heater 8 and the heat conduction effect by the refrigerant remaining inside the evaporator 5 when the compressor 11 is stopped are normally caused. The frost formed on the evaporator 5 in the cooling operation is defrosted.
【００１１】期間Ｅは除霜終了であり、蒸発器５上部に
設置されている除霜温度センサ９が＋１０℃以上に温度
が上昇すると信号がＯＮ状態に反転し、除霜が終了す
る。終了と同時に運転積算手段１５の積算は初期状態に
戻る。その後、除霜制御手段１４の出力信号ｃがＯＮと
なり、期間Ａ、Ｂの通常冷却運転の動作に戻る。また、
除霜センサ９は、蒸発器が−３℃以下に下がるとＯＦＦ
状態に反転する。The period E is the end of defrosting, and when the temperature of the defrosting temperature sensor 9 installed above the evaporator 5 rises above + 10 ° C., the signal is inverted to the ON state and the defrosting ends. Simultaneously with the end, the operation integrating means 15 returns to the initial state. After that, the output signal c of the defrost control means 14 is turned on, and the operation returns to the normal cooling operation in the periods A and B. Also,
Defrost sensor 9 turns off when the evaporator temperature drops below -3 ° C
Invert to state.
【００１２】[0012]
【発明が解決しようとする課題】しかしながら、上記の
ような冷凍冷蔵庫では除霜を行う場合、運転積算手段１
５により、圧縮機１１の運転時間を積算して一定時間毎
に圧縮機の運転を停止させた後、除霜制御手段１４の除
霜ヒータ８を作動させ、蒸発器の温度が所定温度になっ
た後、圧縮機１１を再起動させるものである。However, in the case of performing defrosting in the above refrigerator / freezer, the operation integrating means 1 is used.
5, the operation time of the compressor 11 is integrated and the operation of the compressor is stopped at regular intervals, and then the defrost heater 8 of the defrost control means 14 is operated to bring the temperature of the evaporator to a predetermined temperature. After that, the compressor 11 is restarted.
【００１３】この方式によると、圧縮機１１の運転を積
算した時間によってのみ除霜時期が決定付けられるた
め、蒸発器に付着する霜量が少ない場合に不必要な除霜
を行ったり、また霜量が多くなっているにも関わらず除
霜を行わない場合があった。According to this method, since the defrosting timing is determined only by the time when the operation of the compressor 11 is integrated, unnecessary defrosting is performed when the amount of frost adhering to the evaporator is small, and frosting is performed. There were cases where defrosting was not performed despite the large amount.
【００１４】このため、冷蔵庫がもっとも必要としてい
る時期に除霜を行うことが出来ず、着霜量が多くなって
いる場合には冷却能力の低下をきたし、また、不必要な
時期に除霜を行ってしまう場合には消費電力の面で無駄
がある。For this reason, the refrigerator cannot be defrosted at the time when it is most needed, and when the amount of frost is large, the cooling capacity is lowered, and the defrosting is not necessary. However, there is waste in terms of power consumption.
【００１５】本発明は、上記の問題点を解決するもの
で、冷蔵庫の庫内の湿度を検出し、その検出結果に基づ
き蒸発器に付着する霜量の検出を行うものであるので、
無駄な除霜をなくし、除霜を必要とする場合には必ず除
霜を行うものであるから、冷蔵庫の冷却能力を低下させ
ることなしに必要に応じて除霜を行う省エネルギーな冷
凍冷蔵庫を提供するものである。The present invention solves the above-mentioned problems, and detects the humidity inside the refrigerator and detects the amount of frost adhering to the evaporator based on the detection result.
An energy-saving refrigerating refrigerator that defrosts as needed without reducing the cooling capacity of the refrigerator, as it eliminates unnecessary defrosting and defrosting is always performed when defrosting is required To do.
【００１６】また、本発明は、上記の問題点を解決する
もので、圧縮機の運転時、停止時における着霜の仕方の
違いを考慮して、着霜量の演算を行い、除霜を行うもの
であるから、着霜量の演算を行うときの精度を上げるこ
とが出来、適正な時期での除霜を可能にし、冷蔵庫の冷
却能力を低下させることなしに必要に応じて除霜を行う
省エネルギーな冷凍冷蔵庫を提供するものである。Further, the present invention solves the above-mentioned problems, and in consideration of the difference in the frost formation during the operation and stop of the compressor, the frost formation amount is calculated and defrosting is performed. Since it is performed, it is possible to increase the accuracy when calculating the amount of frost formation, enable defrosting at an appropriate time, and defrost as needed without reducing the cooling capacity of the refrigerator. It provides an energy-saving freezer-refrigerator.
【００１７】[0017]
【課題を解決するための手段】この目的を達成するため
に本発明の冷凍冷蔵庫は、庫内温度を検出する庫内温度
検出手段と、前記庫内温度検出手段の出力結果をもとに
圧縮機の運転を行う温度制御手段と、庫内の絶対湿度を
検出する庫内湿度検出手段と、前記庫内湿度検出手段の
検出結果より霜量を演算する霜量演算手段と、蒸発器に
付着する霜量が適正な値になると除霜を行う除霜制御手
段とから成り、庫内湿度検出手段の検出結果より霜量を
霜量演算手段により演算し、除霜制御手段を駆動させる
冷凍冷蔵庫である。In order to achieve this object, a refrigerator-freezer of the present invention compresses a refrigerator based on the output of the internal temperature detecting means for detecting the internal temperature and the internal temperature detecting means. Temperature control means for operating the machine, internal humidity detection means for detecting the absolute humidity inside the storage, frost amount calculation means for calculating the amount of frost from the detection result of the internal humidity detection means, and adhesion to the evaporator And a defrosting control unit that performs defrosting when the amount of frost is an appropriate value and that calculates the amount of frost by the frost amount calculation unit from the detection result of the internal humidity detection unit and drives the defrost control unit. Is.
【００１８】また、本発明の冷凍冷蔵庫は、庫内温度を
検出する庫内温度検出手段と、前記庫内温度検出手段の
出力結果をもとに圧縮機の運転を行う温度制御手段と、
庫内の絶対湿度を検出する庫内湿度検出手段と、圧縮機
の運転、停止の信号を出力する圧縮機状況検出手段と、
前記庫内湿度検出手段の検出結果より霜量を演算する霜
量演算手段と、蒸発器に付着する霜量が適正な値になる
と除霜を行う除霜制御手段とから成り、庫内湿度検出手
段の検出結果より霜量を霜量演算手段により演算し、除
霜制御手段を駆動させる冷凍冷蔵庫である。Further, the refrigerator-freezer of the present invention comprises: an inside temperature detecting means for detecting the inside temperature; a temperature control means for operating the compressor based on the output result of the inside temperature detecting means;
An in-compartment humidity detecting means for detecting the absolute humidity in the refrigerator, a compressor status detecting means for outputting a signal for operating and stopping the compressor,
The frost amount calculating means for calculating the frost amount from the detection result of the inside humidity detecting means, and the defrost control means for defrosting when the amount of frost attached to the evaporator reaches an appropriate value, the inside humidity detecting means It is a freezer-refrigerator in which the amount of frost is calculated by the frost amount calculation means from the detection result of the means, and the defrost control means is driven.
【００１９】[0019]
【作用】本発明は、従来のように一定時間毎に圧縮機を
停止し除霜を行うものではなく、上記構成によって、冷
蔵庫の庫内湿度を庫内湿度検出手段により検出し、その
検出結果に基づき蒸発器に付着する霜量を霜量演算手段
により検出し、除霜制御手段を介して除霜を行うもので
あるので、無駄な除霜をなくし、除霜を必要とする場合
には必ず除霜を行うものであるから、冷蔵庫の冷却能力
を低下させることなしに必要に応じて除霜を行うことが
出来、また、無駄な除霜を廃止することにより省エネル
ギー化が期待出来る。The present invention does not stop the compressor at regular intervals for defrosting as in the prior art, but detects the humidity inside the refrigerator by means of the humidity detecting means in the refrigerator according to the above configuration. The amount of frost adhering to the evaporator based on the above is detected by the frost amount calculation means, and defrosting is performed via the defrosting control means. Therefore, when unnecessary defrosting is eliminated and defrosting is required, Since defrosting is always performed, defrosting can be performed as needed without lowering the cooling capacity of the refrigerator, and energy saving can be expected by eliminating wasteful defrosting.
【００２０】また、本発明は、上記構成によって、圧縮
機の運転時、停止時における着霜の仕方の違いを考慮し
て、着霜量の演算を行い、除霜を行うものであるから、
着霜量の演算を行うときの精度を上げることが出来、適
正な時期での除霜を可能にし、冷蔵庫の冷却能力を低下
させることなしに必要に応じて除霜を行うことが出来、
また、無駄な除霜を廃止することにより省エネルギー化
が期待出来る。Further, according to the present invention, with the above configuration, the amount of frost formation is calculated and the defrosting is performed in consideration of the difference in the frost formation during operation and stop of the compressor.
It is possible to improve the accuracy when calculating the amount of frost formation, enable defrosting at an appropriate time, and perform defrosting as needed without reducing the cooling capacity of the refrigerator,
In addition, energy saving can be expected by eliminating unnecessary defrosting.
【００２１】[0021]
【実施例】以下本発明の第一の実施例の冷凍冷蔵庫の動
作について、図面を参照しながら説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The operation of the refrigerator / freezer according to the first embodiment of the present invention will be described below with reference to the drawings.
【００２２】尚、従来例と同一の構成については同一符
号を付してその詳細な説明を省略する。The same components as those of the conventional example are designated by the same reference numerals, and detailed description thereof will be omitted.
【００２３】図１において、１２は温度制御手段で、庫
内温度検出手段１０の動作を入力する信号ａと、ＡＮＤ
ゲート１３に出力する信号ｂが接続されている。１４は
除霜制御手段で、霜量演算手段１６の出力を入力する信
号ｉと、除霜ヒータ８に出力する信号ｇと、除霜温度セ
ンサ９の動作を入力する信号ｈと、ＡＮＤゲート１３に
出力する信号ｃに接続されている。１６は霜量演算手段
で除霜制御手段１４に出力する信号ｉと、庫内湿度検出
手段１７の出力信号ｊに接続されている。In FIG. 1, reference numeral 12 is a temperature control means, which is connected with a signal a for inputting the operation of the inside temperature detection means 10 and AND.
The signal b output to the gate 13 is connected. Defrost control means 14 is a signal i for inputting the output of the frost amount calculating means 16, a signal g for outputting to the defrost heater 8, a signal h for inputting the operation of the defrost temperature sensor 9, and an AND gate 13. It is connected to the signal c output to. Reference numeral 16 is a frost amount calculation means, which is connected to the signal i output to the defrost control means 14 and the output signal j of the in-compartment humidity detection means 17.
【００２４】庫内湿度検出手段１７は、図４の蒸発器５
への最終風路である野菜室４に取り付けられ常時冷蔵庫
の湿度を検知している。この庫内湿度検出手段１７にお
いて出力信号は絶対湿度の信号であり、信号ｊとして霜
量演算手段１６に入力される。The inside humidity detecting means 17 is the evaporator 5 of FIG.
It is installed in the vegetable compartment 4, which is the final air passage to the refrigerator, and constantly detects the humidity of the refrigerator. The output signal of the internal humidity detecting means 17 is a signal of absolute humidity and is input to the frost amount calculating means 16 as a signal j.
【００２５】霜量演算手段１６は庫内湿度検出手段１７
より入力された絶対湿度を冷凍冷蔵庫運転開始時より３
０秒間隔で積算してゆく。冷蔵庫庫内の湿度は、冷気が
巡回しているため、あるいは、圧縮機１１の運転等によ
り随時変化するが、野菜室４に庫内湿度検出手段１７を
取り付け、その絶対湿度を積算して行くことにより、あ
る時間での蒸発器５を通過する、または、入り込む水分
量を検出することができる。The frost amount calculating means 16 is an internal humidity detecting means 17
The entered absolute humidity is 3 from the start of the refrigerator operation.
Accumulate at 0 second intervals. The humidity in the refrigerator compartment changes at any time because the cold air circulates or due to the operation of the compressor 11 or the like, but the compartment humidity detection means 17 is attached to the vegetable compartment 4 and the absolute humidity is integrated. This makes it possible to detect the amount of water that passes through or enters the evaporator 5 at a certain time.
【００２６】また、霜量演算手段１６は前記の積算湿度
を蒸発器５で成長する霜量に変換する。Further, the frost amount calculating means 16 converts the integrated humidity into the amount of frost growing in the evaporator 5.
【００２７】霜量演算手段１６において、積算絶対湿度
を変換して求めた霜量が所定の量に達すると、霜量演算
手段１６から信号ｉが送信され、除霜制御手段１４に入
力される。信号ｉを受け、除霜制御手段１４は信号ｇを
除霜ヒータ８に出力し、除霜ヒータ８は通電され熱を発
し除霜を行う。また、このとき、同時にＡＮＤゲート１
３に信号ｃが出力され、信号ｂと兼ね合わされ、信号ｄ
が圧縮機１１に送られ、圧縮機は停止する。When the amount of frost obtained by converting the integrated absolute humidity in the frost amount calculation means 16 reaches a predetermined amount, a signal i is transmitted from the frost amount calculation means 16 and input to the defrost control means 14. . In response to the signal i, the defrost control means 14 outputs the signal g to the defrost heater 8, and the defrost heater 8 is energized to generate heat and defrost. At the same time, AND gate 1
The signal c is output to 3, and is combined with the signal b, and the signal d
Is sent to the compressor 11, and the compressor stops.
【００２８】除霜温度センサ９が所定の温度（＋１０
℃）以上になると、除霜制御手段１４は、除霜終了を告
げる信号ｃを送信し圧縮機１１は再び運転を開始する。The defrosting temperature sensor 9 has a predetermined temperature (+10
(° C) or higher, the defrost control means 14 transmits a signal c informing the end of defrost, and the compressor 11 starts operation again.
【００２９】以上のように本実施例によれば、冷凍冷蔵
庫の庫内温度を検出する庫内温度検出手段１０と、前記
庫内温度検出手段１０の出力結果をもとに圧縮機の運転
を行う温度制御手段１２と、冷蔵庫庫内の絶対湿度を検
出する庫内湿度検出手段１７と、前記庫内湿度検出手段
の検出結果より霜量を演算する霜量演算手段１６と、霜
量演算手段１６によって演算された霜量が所定の値にな
ると除霜を行う除霜制御手段１４とから構成されるもの
であるから、無駄な除霜をなくし、除霜を必要とする場
合には必ず除霜を行うものであるから、冷蔵庫の冷却能
力を低下させることなしに必要に応じて除霜を行うこと
が出来る。As described above, according to this embodiment, the inside temperature detecting means 10 for detecting the inside temperature of the refrigerator and the refrigerator, and the operation of the compressor based on the output result of the inside temperature detecting means 10. Temperature control means 12 for performing, internal humidity detection means 17 for detecting absolute humidity inside the refrigerator, frost amount calculation means 16 for calculating the frost amount from the detection result of the internal humidity detection means, and frost amount calculation means Since the defrosting control means 14 performs defrosting when the amount of frost calculated by 16 reaches a predetermined value, unnecessary defrosting is eliminated and defrosting is always performed when defrosting is required. Since frost is used, defrosting can be performed as necessary without reducing the cooling capacity of the refrigerator.
【００３０】以下、本発明の第二の実施例の冷凍冷蔵庫
の動作について、図面を参照しながら説明する。従来例
と第一の実施例と同一の構成のものは、同一符号を付し
て説明を省略する。The operation of the refrigerator / freezer according to the second embodiment of the present invention will be described below with reference to the drawings. The same components as those of the conventional example and the first embodiment are designated by the same reference numerals and the description thereof will be omitted.
【００３１】図２において、１２は温度制御手段で、庫
内温度検出手段１０の動作を入力する信号ａと、ＡＮＤ
ゲート１３に出力する信号ｂが接続されている。１４は
除霜制御手段で、霜量演算手段１６の出力を入力する信
号ｉと、除霜ヒータ８に出力する信号ｇと、除霜温度セ
ンサ９の動作を入力する信号ｈと、ＡＮＤゲート１３に
出力する信号ｃに接続されている。１６は霜量演算手段
で除霜制御手段１４に出力する信号ｉと、庫内湿度検出
手段１７の出力信号ｊに接続されている。In FIG. 2, reference numeral 12 is a temperature control means, which is ANDed with a signal a for inputting the operation of the inside temperature detection means 10.
The signal b output to the gate 13 is connected. Defrost control means 14 is a signal i for inputting the output of the frost amount calculating means 16, a signal g for outputting to the defrost heater 8, a signal h for inputting the operation of the defrost temperature sensor 9, and an AND gate 13. It is connected to the signal c output to. Reference numeral 16 is a frost amount calculation means, which is connected to the signal i output to the defrost control means 14 and the output signal j of the in-compartment humidity detection means 17.
【００３２】１１は圧縮機であるが、信号ｄからの信号
を受けて、運転または、停止する。このｄと同じ信号を
圧縮機状況検出手段１８は、信号ｋを通じて霜量演算手
段１６に出力する。この信号ｋは、圧縮機１１が現在運
転しているか、停止しているかの状態を知らせるもので
ある。Reference numeral 11 denotes a compressor, which operates or stops in response to a signal from the signal d. The compressor status detection means 18 outputs the same signal as this d to the frost amount calculation means 16 through the signal k. This signal k informs the state of whether the compressor 11 is currently operating or stopped.
【００３３】例えば、冷凍冷蔵庫では、圧縮機１１が運
転している場合、蒸発器５に着霜する霜の成長度は大き
い。圧縮機１１が停止している場合、霜の成長度は上
昇、または、下降している。For example, in a refrigerator-freezer, when the compressor 11 is operating, the growth rate of frost that forms on the evaporator 5 is large. When the compressor 11 is stopped, the degree of frost growth is rising or falling.
【００３４】圧縮機１１が運転している場合は、信号ｋ
はＯＮを出力し、霜量演算手段１６は、図３のαの関数
を選び、その時の積算絶対湿度に対する着霜量を演算す
る。圧縮機１１が停止している場合は、信号ｋはＯＦＦ
を出力し、霜量演算手段１６は、図３のβの関数を選
び、その時の積算絶対湿度に対する着霜量を演算する。
圧縮機１１の運転、停止にあわせて霜量演算手段１６は
関数α、βを選び変え、適正な霜量になるまで、繰り返
し選択を行い、その後、実施例一と同様に除霜制御手段
１４により、除霜を行う。When the compressor 11 is operating, the signal k
Outputs ON, and the frost amount calculation means 16 selects the function of α in FIG. 3 and calculates the frost formation amount for the integrated absolute humidity at that time. When the compressor 11 is stopped, the signal k is OFF
Then, the frost amount calculation means 16 selects the function of β in FIG. 3 and calculates the frost formation amount for the integrated absolute humidity at that time.
The frost amount calculation means 16 selects functions α and β in accordance with the operation and stop of the compressor 11 and repeatedly selects until the proper frost amount is obtained, and then the defrost control means 14 as in the first embodiment. To defrost.
【００３５】以上のように本実施例によれば、庫内温度
を検出する庫内温度検出手段１０と、前記庫内温度検出
手段１０の出力結果をもとに圧縮機の運転を行う温度制
御手段１２と、庫内の絶対湿度を検出する庫内湿度検出
手段１７と、圧縮機の運転、停止の信号を出力する圧縮
機状況検出手段１８と、前記庫内湿度検出手段の検出結
果より霜量を演算する霜量演算手段１６と、霜量演算手
段１６によって演算された霜量が所定の値になると除霜
を行う除霜制御手段１４とから構成されるものであるか
ら、無駄な除霜をなくし、除霜を必要とする場合には必
ず除霜を行うものであるから、圧縮機の運転時、停止時
における着霜の仕方の違いを考慮して、着霜量の演算を
行い、除霜を行うものであるから、着霜量の演算を行う
ときの精度を上げることが出来、適正な時期での除霜を
可能にし、冷蔵庫の冷却能力を低下させることなしに必
要に応じて除霜を行うことが出来る。As described above, according to this embodiment, the inside temperature detecting means 10 for detecting the inside temperature, and the temperature control for operating the compressor based on the output result of the inside temperature detecting means 10. Means 12, an in-compartment humidity detecting means 17 for detecting the absolute humidity in the refrigerator, a compressor status detecting means 18 for outputting a signal for operating and stopping the compressor, and a frost from the detection result of the in-compartment humidity detecting means. The frost amount calculation means 16 for calculating the amount and the defrost control means 14 for performing defrosting when the frost amount calculated by the frost amount calculation means 16 reaches a predetermined value are constituted by wasteful defrosting. Since defrosting is always performed when defrosting is required and defrosting is required, the amount of frosting is calculated in consideration of the difference in how frost is formed when the compressor is operating and when it is stopped. , The defrosting is performed, so the accuracy when calculating the amount of frost is increased. It is possible, to enable the defrosting of at an appropriate time, defrosting can be performed as needed without reducing the refrigerator cooling capacity.
【００３６】[0036]
【発明の効果】以上のように、本発明の冷凍冷蔵庫は、
庫内温度を検出する庫内温度検出手段と、前記庫内温度
検出手段の出力結果をもとに圧縮機の運転を行う温度制
御手段と、庫内の絶対湿度を検出する庫内湿度検出手段
と、前記庫内湿度検出手段の検出結果より霜量を演算す
る霜量演算手段と、霜量演算手段によって演算された霜
量が所定の値になると除霜を行う除霜制御手段とから成
り、冷蔵庫の庫内湿度を庫内湿度検出手段により検出
し、その検出結果に基づき蒸発器に付着する霜量の検出
し、除霜制御手段を介して除霜を行い、無駄な除霜をな
くし、除霜を必要とする場合には必ず除霜を行うもので
あるから、冷蔵庫の冷却能力を低下させることなしに必
要に応じて除霜を行うことが出来、また、無駄な除霜を
廃止することにより省エネルギー化が期待できる。As described above, the refrigerator / freezer of the present invention is
Inside temperature detecting means for detecting the inside temperature, temperature control means for operating the compressor based on the output result of the inside temperature detecting means, and inside humidity detecting means for detecting the absolute humidity in the inside And a frost amount calculating means for calculating the frost amount from the detection result of the internal humidity detecting means, and a defrost control means for performing defrosting when the frost amount calculated by the frost amount calculating means reaches a predetermined value. The humidity inside the refrigerator is detected by the humidity detecting means, and the amount of frost adhering to the evaporator is detected based on the detection result, and defrosting is performed through the defrosting control means to eliminate wasteful defrosting. Since defrosting is always performed when defrosting is required, defrosting can be performed as needed without reducing the cooling capacity of the refrigerator, and wasteful defrosting is eliminated. Energy saving can be expected by doing so.
【００３７】また、庫内温度を検出する庫内温度検出手
段と、前記庫内温度検出手段の出力結果をもとに圧縮機
の運転を行う温度制御手段と、庫内の絶対湿度を検出す
る庫内湿度検出手段と、圧縮機の運転、停止の信号を出
力する圧縮機状況検出手段と、前記庫内湿度検出手段の
検出結果より霜量を演算する霜量演算手段と、霜量演算
手段によって演算された霜量が所定の値になると除霜を
行う除霜制御手段とから構成され、無駄な除霜をなく
し、除霜を必要とする場合には必ず除霜を行うものであ
るから、圧縮機の運転時、停止時における着霜の仕方の
違いを考慮して、着霜量の演算を行い、除霜を行うもの
であるから、着霜量の演算を行うときの精度を上げるこ
とが出来、適正な時期での除霜を可能にし、冷蔵庫の冷
却能力を低下させることなしに必要に応じて除霜を行う
ことが出来、また、無駄な除霜を廃止することにより省
エネルギー化が期待できる。Further, the inside temperature detecting means for detecting the inside temperature, the temperature control means for operating the compressor based on the output result of the inside temperature detecting means, and the absolute humidity inside the inside are detected. Internal humidity detection means, compressor status detection means for outputting signals for operating and stopping the compressor, frost amount calculation means for calculating the frost amount from the detection result of the internal humidity detection means, and frost amount calculation means It is composed of defrosting control means that defrosts when the amount of frost calculated by is a predetermined value, eliminates unnecessary defrosting, and defrosting is always performed when defrosting is required. , The defrosting is performed by calculating the frosting amount in consideration of the difference in the frosting method when the compressor is operating and when the compressor is stopped. Therefore, the accuracy when calculating the frosting amount is increased. It enables defrosting at a proper time and reduces the cooling capacity of the refrigerator. Can be defrosted as needed without the door, also, energy saving can be expected by to abolish the wasteful defrosting.
【図１】本発明の第一の実施例における冷凍冷蔵庫の制
御ブロック図FIG. 1 is a control block diagram of a refrigerator-freezer according to a first embodiment of the present invention.
【図２】本発明の第二の実施例における冷凍冷蔵庫の制
御ブロック図FIG. 2 is a control block diagram of a refrigerator-freezer according to a second embodiment of the present invention.
【図３】本発明の第二の実施例における冷凍冷蔵庫の積
算絶対湿度と着霜量の相関図FIG. 3 is a correlation diagram of the integrated absolute humidity and the amount of frost formed in the refrigerator / freezer according to the second embodiment of the present invention.
【図４】従来の冷凍冷蔵庫の構成図FIG. 4 is a block diagram of a conventional refrigerator-freezer.
【図５】従来の冷凍冷蔵庫の制御ブロック図FIG. 5 is a control block diagram of a conventional refrigerator-freezer.
【図６】従来の冷凍冷蔵庫の制御タイミングチャートFIG. 6 is a control timing chart of a conventional refrigerator-freezer.
８ 除霜ヒータ ９ 除霜温度センサ １０ 庫内温度検出手段 １１ 圧縮機 １２ 温度制御手段 １３ ＡＮＤゲート １４ 除霜制御手段 １６ 霜量演算手段 １７ 庫内湿度検出手段 １８ 圧縮機状況検出手段 8 Defrost Heater 9 Defrost Temperature Sensor 10 Inside Temperature Detection Means 11 Compressor 12 Temperature Control Means 13 AND Gate 14 Defrost Control Means 16 Frost Amount Calculating Means 17 Inside Humidity Detecting Means 18 Compressor Status Detecting Means
Claims (2)
と、前記庫内温度検出手段の出力結果をもとに圧縮機の
運転を行う温度制御手段と、庫内の絶対湿度を検出する
庫内湿度検出手段と、前記庫内湿度検出手段の検出結果
より霜量を演算する霜量演算手段と、蒸発器に付着する
霜量が適正な値になると除霜を行う除霜制御手段とから
成り、庫内湿度検出手段の検出結果より霜量を霜量演算
手段により演算し、除霜制御手段を駆動させることを特
徴とする冷凍冷蔵庫。1. An inside temperature detecting means for detecting an inside temperature, a temperature control means for operating a compressor based on an output result of the inside temperature detecting means, and an absolute humidity inside the inside. Internal humidity detecting means, frost amount calculating means for calculating the frost amount from the detection result of the internal humidity detecting means, and defrost control means for performing defrosting when the amount of frost adhering to the evaporator becomes an appropriate value. The refrigerator-freezer characterized in that the frost amount is calculated by the frost amount calculation unit based on the detection result of the internal humidity detection unit, and the defrost control unit is driven.
と、前記庫内温度検出手段の出力結果をもとに圧縮機の
運転を行う温度制御手段と、冷蔵庫庫内の絶対湿度を検
出する庫内湿度検出手段と、圧縮機の運転、停止の信号
を出力する圧縮機状況検出手段と、前記庫内湿度検出手
段の検出結果より霜量を演算する霜量演算手段と、蒸発
器に付着する霜量が適正な値になると除霜を行う除霜制
御手段とから成り、圧縮機の運転の仕方の違いによる着
霜変化を圧縮機運転検出手段より読み取り、庫内湿度検
出手段の検出結果より霜量を霜量演算手段により演算
し、除霜制御手段を駆動させることを特徴とする冷凍冷
蔵庫。2. An inside temperature detecting means for detecting the inside temperature, a temperature controlling means for operating a compressor based on an output result of the inside temperature detecting means, and an absolute humidity inside the refrigerator. In-compartment humidity detecting means, compressor operation, compressor status detecting means for outputting a signal of stop, frost amount calculating means for calculating the frost amount from the detection result of the in-compartment humidity detecting means, and the evaporator It consists of defrosting control means that defrosts when the amount of frost adhering becomes an appropriate value, and reads the frosting change due to the difference in the operation method of the compressor from the compressor operation detection means and detects it by the in-compartment humidity detection means A freezer-refrigerator characterized in that the amount of frost is calculated from the result by the frost amount calculation means, and the defrost control means is driven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5028194A JPH07260324A (en) | 1994-03-22 | 1994-03-22 | Refrigerator freezer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5028194A JPH07260324A (en) | 1994-03-22 | 1994-03-22 | Refrigerator freezer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07260324A true JPH07260324A (en) | 1995-10-13 |
Family
ID=12854553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5028194A Pending JPH07260324A (en) | 1994-03-22 | 1994-03-22 | Refrigerator freezer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07260324A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1314934C (en) * | 2003-06-06 | 2007-05-09 | 博西华家用电器有限公司 | Household temperature and humidity control refrigerator and controlling method thereof |
| US8033124B2 (en) * | 2008-03-28 | 2011-10-11 | Samsung Electronics Co., Ltd. | Refrigerator and defrost control method thereof |
-
1994
- 1994-03-22 JP JP5028194A patent/JPH07260324A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1314934C (en) * | 2003-06-06 | 2007-05-09 | 博西华家用电器有限公司 | Household temperature and humidity control refrigerator and controlling method thereof |
| US8033124B2 (en) * | 2008-03-28 | 2011-10-11 | Samsung Electronics Co., Ltd. | Refrigerator and defrost control method thereof |
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